MCP4902-ESLASHST datasheet(5/48 Pages) MICROCHIP

5 / 48 page

 2010 Microchip Technology Inc.

DS22250A-page 5

MCP4902/4912/4922

ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE

Electrical Specifications: Unless otherwise indicated, VDD = 5V, VSS = 0V, VREF = 2.048V, Output Buffer Gain (G) = 2x, RL = 5 k to

GND, CL = 100 pF. Typical values are at +125°C by characterization or simulation.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Power Requirements

Operating Voltage

VDD

2.7

—

5.5

Operating Current

IDD

—

400

—

µA

VREF input is unbuffered, all digi-

tal inputs are grounded, all analog

outputs (VOUT) are unloaded.

Code=000h

Hardware Shutdown

Current

ISHDN

—

1.5

—

µA

POR circuit is turned-off

Software Shutdown Current ISHDN_SW

—

µA

POR circuit stays turned-on

Power-On Reset threshold

VPOR

—1.85

—

DC Accuracy

MCP4902

Resolution

—

Bits

INL Error

INL

±0.25

LSb

DNL

±0.2

LSb

Note 1

MCP4912

Resolution

—

Bits

INL Error

INL

±1

LSb

DNL

±0.2

LSb

Note 1

MCP4922

Resolution

—

Bits

INL Error

INL

±4

LSb

DNL

±0.25

LSb

Note 1

Offset Error

VOS

—

±0.02

—

% of FSR

Code 0x000h

Offset Error Temperature

Coefficient

VOS/°C

—

-5

—

ppm/°C

+25°C to +125°C

Gain Error

—

-0.10

—

% of FSR

Code = 0xFFFh, not including off-

set error

Gain Error Temperature

Coefficient

G/°C

—

-3

—

ppm/°C

Input Amplifier (VREF Input)

Input Range – Buffered

Mode

VREF

—

0.040 to

VDD – 0.040

—V

Note 1

Code = 2048,

VREF = 0.2V p-p, f = 100 Hz and

1kHz

Input Range – Unbuffered

Mode

VREF

0—

VDD

Input Impedance

RVREF

—

174

—



Unbuffered mode

Input Capacitance –

Unbuffered Mode

CVREF

—7

—

Note 1:

Guaranteed monotonic by design over all codes.

This parameter is ensured by design, and not 100% tested.

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